We are a contract manufacturer that is currently ISO 9001:2008 registered and getting ready for our ISO 9001:2015 audit later this year. We do not make a product line of our own, so we had a design exclusion for ISO 9001:2008. We do assist our customers in product development quite often. Our customers give a criteria on what they want and our sales team and engineers determine determine the best method to manufacture the part and give suggestions on cost savings or improvements. During this process we are in contact with the customer and give them regular updated drawings for their approval. They sign off on the final design before a prototype is made or the item goes into production. At that point we generally consider them owning the design and the responsibilities that go with it. My question is if we meet the criteria for section 8.3.2 Design Planning and section 8.3.3 Design Inputs, can we be excluded from section 8.3.4 Design Controls and 8.3.5 Design Outputs because that portion is our customer's responsibility?